Oly 35 RD self-timer lever

Hi everybody, I have a Olympus 35 RD with a broken self-timer lever and another one that's completely broken but with an intact lever. Now I want to transplant the lever to the good camera. But I can't loosen the screw.

Does anybody know if the screw is left- or right-threaded, I don't want to put too much force on the lever, it might also break like so many others. Someone with a repair manual should know the answer.

Thanks in advance and best - Reinhold

All right, brute force finally showed that it's a left-threaded screw, so I had to turn it clockwise to detach it. And I was lucky, lever and screw survived.